The beauty of mathematics is laid out naturally and clearly. ——Paul Halmos

Parents and teachers should be good at allowing children to discover and feel the beauty of mathematics, so as to establish their own mathematical aesthetic awareness. ——Xu Lizhi

Fractal geometry not only shows the beauty of mathematics, but also reveals the essence of the world, and also changes the way people understand the mysteries of nature; it can be said that fractal geometry is the geometry that truly describes nature. Its research has also greatly expanded the realm of human cognition. ——Zhou Haizhong